scholarly journals Studi keanekaragaman jenis dalam Suku Oxalidaceae di Institut Teknologi Bandung (ITB) Kampus Ganesha

2021 ◽  
Vol 10 (2) ◽  
pp. 129-142
Author(s):  
Reza Raihandhany ◽  
Muhammad Aditio Ramadian

Oxalidaceae atau suku belimbing-belimbingan merupakan suku yang berasal dari bangsa Oxalidales dan terdiri dari enam marga serta 775 jenis. Nama Oxalidaceae berasal dari Bahasa Yunani, oxic, artinya asam. Bagian tumbuhan pada suku ini terasa asam karena terdapat kandungan asam oksalat. Suku ini tersebar di seluruh dunia. Nilai ekonomi yang dihasilkan dari suku ini tergolong kecil, namun beberapa jenis berpotensi dan dapat dimanfaatkan sebagai tumbuhan pangan, obat, dan ornamental. Suku Oxalidaceae juga terdapat di Institut Teknologi Bandung (ITB) Kampus Ganesha. Penelitian ini bertujuan untuk menginventarisasi keanekaragaman jenis dalam suku Oxalidaceae di ITB Kampus Ganesha dengan menggunakan metode jelajah. Berdasarkan hasil penelitian, ditemukan ditemukan enam jenis dari dua marga (Averrhoa dan Oxalis) dengan masing-masing bentuk hidup pohon dan herba secara berturut-turut. Keenam jenis dari suku Oxalidaceae yang ditemukan di ITB Kampus Ganesha antara lain Averrhoa bilimbi, Averrhoa carambola, Oxalis barrelieri, Oxalis corniculata, Oxalis debilis var. corymbosa, dan Oxalis intermedia. Kata kunci: Averrhoa;  ITB Ganesha; keanekaragaman; Oxalidaceae; Oxalis ABSTRACTStudy of diversity types in the Oxalidaceae tribe in Bandung Institute of Technology (ITB), Ganesha CampusOxalidaceae, or wood sorrel family is a family that classified under Oxalidales order and consist of six genera and 775 species. Oxalidaceae name comes from Old Greek language, oxic, meaning acid. The species contain oxalic acid that gives sour taste to the plant. It is widely distributed across the world. The economic value of the species in this family is rather low, but some has potential to become food, medicinal, and ornamental plants. This family also found in Institut Teknologi Bandung (ITB) Ganesha campus. This research aimed to do inventory of the family’s species in ITB Ganesha campus. The method used in this research was roaming/exploration method. The result showed that there were six species from two genera (Averrhoa and Oxalis) found in the campus. The two Averrhoa species were found to be tree species meanwhile four Oxalis species were herb species. All six species found were Averrhoa bilimbi, Averrhoa carambola, Oxalis barrelieri, Oxalis corniculata, Oxalis debilis var. corymbosa, and Oxalis intermedia. Keywords: Averrhoa; biodiversity; ITB Ganesha; Oxalidaceae; Oxalis s, ITB Ganesha  

Author(s):  
Muhyettin ŞENTÜRK ◽  
Rıza BİNZET

Humanity has used plants for aesthetic purposes for centuries. Plants nowadays use cities for more livable habitats and similar purposes to satisfy the longing for nature of people who move away from nature due to increasing urbanization. So that plants attract attention as a commercial field plays a crucial role in economic development for many countries today. Our country, which is one of the richest geographies in terms of biodiversity globally, shows a total of 11466 plant taxa, 3800 of which are endemic. While the total number of plant species in all of Europe is around 12.000, in our country there are approximately 10.000 species. When the species and subspecies identified in recent years are added, around 12,000 taxa find natural habitats in our country. Mersin province is one of the important endemism centers of our country, with approximately 400 endemic species (endemism rate is approximately 23%). It is seen that the areas where geophytes spread intensively in the world are regions where the Mediterranean climate prevails, which is humid and warm in winters and dry and hot in summers. The Mediterranean Basin, where our country is located, is the second richest geophyte region in the world. Mersin province is one of the provinces located in the Mediterranean Basin. Within the scope of this study, it is to determine the usability of endemic plant species that are naturally distributed in Mersin province as ornamental plants and to ensure that they gain economic value in the ornamental plant market. For this purpose, in our study, some monocotyledon taxa that have an ornamental plant potential from endemic plant taxa in Mersin have been determined, and photographs of these taxa are presented. The recommended taxa are geophyte taxa, and the fact that they only spread in our country (some only in Mersin) is of great importance in bringing these species into the landscape as ornamental plants. A total of 20 endemic taxa belonging to 5 different monocotyledon families identified in Mersin were determined. The endangered extinction of some of these taxa proposed as ornamental plants is also of great importance in ensuring their generation by bringing them into the landscape with various production techniques.


2018 ◽  
Vol 27 (5) ◽  
pp. 691-702
Author(s):  
Ki-Dong Kim ◽  
Dae-Seung Yang ◽  
Kwon Jang

1996 ◽  
Vol 25 (2) ◽  
pp. 107-113 ◽  
Author(s):  
Reuben Ausher

Protection of crop and ornamental plants from noxious organisms — insects, nematodes, mites, pathogens and weeds — is indispensable to modern agriculture. Despite intensive control efforts, about 50% of the world's crops are lost to these organisms, at an estimated annual cost of about 400 billion dollars. Ever since the advent of synthetic pesticides in the 1940s, modern crop protection has been largely based on chemical control. Pesticide expenditures are about 20% of total farming input costs, although this figure varies substantially according to crop and region. Mounting environmental concerns and pest control failures have made It increasingly clear that the use of toxic pesticides In agriculture should be drastically reduced all over the world.


2013 ◽  
Vol 397-400 ◽  
pp. 157-161
Author(s):  
Wei Wei Zhang ◽  
Xiao Song Wang ◽  
Shi Jian Yuan ◽  
Zhong Ren Wang

For a cylinder-beam integrated hydraulic press (CBIHP), the hydraulic cylinder is also functioned as an upper beam. It is the key structural component that outputs the driving force to forge parts. Compared with the traditional three-beam and four-column hydraulic press which has a cylindrical hydraulic cylinder, the structure and force distribution are significantly different for CBIHP. It is able to have higher nominal force and larger section of plunger which the pressure is applied on when the contour geometric dimension is the same. Also, CBIHP has lighter weight and larger section modulus when the nominal force is the same than the traditional hydraulic press. Finally, a 6300KN cylinder-beam integrated hydraulic press, which is the first CBIHP in the world and designed by Harbin Institute of Technology (HIT) in 2012, is also introduced in this paper. It can be seen from the results of numerical simulation for the CBIHP that both of the stresses and displacements on the press in the loading process are allowable.


2018 ◽  
Vol 8 (3) ◽  
pp. 191-196
Author(s):  
Inggar Damayanti ◽  
Iskandar Z. Siregar ◽  
Sri Rahayu

In the tropical rainforests of Jambi, Sumatera, a particular group of epiphytes, species in the genus Hoya, have significant potential to be developed as commercially valuable ornamental plants, because of the uniqueness and beauty of their flowers. Hoya spp. are epiphytic vines whose survival depends largely on the presence of carrier trees, i.e. phorophyte trees. The study reported here was conducted to identify the level of epiphytic association between phorophyte trees and identified Hoya species. The study found four Hoya species, namely: Hoya rintzii, Hoya revoluta, Hoya coronaria, and Hoya cf. caudata. The four species of Hoya were found growing on eleven different species of phorophyte trees. Based on the results of t-contingency tables it was found that there is no association between particular Hoya species and the particular phorophyte tree species. This conclusion was supported by the calculation of Jaccard association indices demonstrating that the association between Hoya spp. and phorophyte tree species is relatively weak. Crown cover and the diameter of the tree are two habitat variables that affect the presence of Hoya revoluta at the sites. The presence of Hoya caudata was influenced by the variable temperature, while the presence of Hoya coronaria was associated with humidity, but the degree of association was relatively weak. The most significant variables affecting the presence of Hoya rintzii were tree height and elevation.Key word: association, ephyphites, Hoya spp, phorophyte.


2019 ◽  
Vol 3 (2) ◽  
pp. 61-64
Author(s):  
Andri Harmoro Kusumo Broto ◽  
Sofyan Mahardika Rahardi ◽  
Mega Andriana Jane ◽  
Kinanti Ayu Wigaringtyas ◽  
Abdullah G Toda ◽  
...  

 Batik is a picture art that is poured in a piece of cloth that is one of the Indonesian nation's identity that is recognized as World heritage. Unesco has set Batik as a Masterpieces of the Oral and the Intangible Heritage of Humanity on October 2, 2009. In Indonesia, Batik has expanded and penetrated the market share as the development of fashion in the world. Motives that exist in the market is also various types and apparently. Among others: Batik Mega Mendung, Batik Parang Rusak, Batik Kawung, etc. Which makes each type of batik has a different aesthetic value is different its uniqueness.. Dyeing techniques also vary from dyeing techniques, connective techniques, jumputan techniques etc.. Seeing this opportunity encourages the emergence of the idea of making Batik, but replace the use of the night with Leaf Betel. Leaf Betel  itself is only used as medicine or herbal medicine by the surrounding community. With this idea, in addition to raising the economic value of Leaf Betel, the original legacy of Indonesia can also be preserved. Starting from drawing sketches on mori cloth, then burst the Batik motif with Scratches Ginger Leaf Betel on it using Nails. After this step is passed, continued the coloring, for staining time required about 1-2 hours for 1x1 meter sized fabric. The results are sold in the form of batik cloth, and marketed through social media, and sold directly in the area of Madiun and surrounding areas.


Author(s):  
Raj B. Patel ◽  
Ketan Tatu ◽  
R. D. Kamboj

The present study was conducted with an aim of documenting the diversity of flowering plants in selected localities in the estuarine and adjoining riparian zones of Sabarmati and Mahi rivers of Gujarat, India. The Sabarmati and Mahi rivers are west-flowing perennial rivers having considerable ecological and religious importance. A total of 40 species of flowering plants belonging to 26 different families were recorded in the study area which were dominated by herbaceous plants. Among the 40 species recorded 2 species were trees, 8 species were shrubs, 28 species were herbs and 2 species were grasses. Moreover, as far as ecological groups are concerned, 6 species were halophytes, 13 species were hydrophytes, 17 species were mesophytes and 4 species were xerophytes. In the study area of Sabarmati river, 28 species were recorded that included 2 tree species, 6 shrub species, 18 herb species and 2 grass species. From the view point of ecological groups 5 species were halophytes, 3 species were hydrophytes, 16 species were mesophytes and 4 species were xerophytes. In the study area of Mahi river, 24 species were recorded that included 2 tree species, 6 shrub species, 14 herb species and 2 grass species. From the view point of ecological groups 5 species were halophytes, 12 species were hydrophytes, 5 species were mesophytes and 2 species were xerophytes.


2021 ◽  
Vol 102 (2) ◽  
pp. 164-170
Author(s):  
G. Sarzhanova ◽  
◽  
A. Toleuzhan ◽  
S. Turbaeva ◽  
◽  
...  

The article discusses the importance of using open educational resources (OER) and the need to use the technology for the development of speaking skills in the foreign language as well. The concept of OER first emerged in the 1990s and Open Educational Resources Movement announced in 2001 that MIT's entire course catalog was being put online and the project was going to be launched at the Massachusetts Institute of Technology in 2002. This technology has a number of advantages. For example, the use of OER provides free access to textbooks, allows maximizing time efficiently, increases the interest and motivation of students and helps teachers transform classes. However, it is difficult to deny the existence of some problems regarding OER. The main disadvantages include the quality of the educational resource and the lack of Internet access in all regions of the world. But shortcomings are a ‘temporary issue’ and in the future OER will be adapted in all countries of the world to a greater extent. It will be productive to develop foreign language speech skills using OER, since it allows students to acquire new knowledge more quickly and effectively. The developments of such skills will undoubtedly occurre directly as a result of the continuing use of various authentic materials and the frequent use of these materials by foreign language teachers in the classes is a topical issue. As a result, teachers may encounter problems related to lack of suitable language teaching materials. An important condition for solving the problem is the use of OER, which helps the teacher to develop students’ required skills in the learning process.


Forests ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1608
Author(s):  
Aslihan Esringü ◽  
Metin Turan ◽  
Asli Cangönül

Heavy metal pollution is among the important environmental problems in the world. Many techniques have already been used to remove the heavy metals such as lead (Pb) and cadmium (Cd). Among them, the phytoremediation method is an environmentally friendly and green technology. This study was carried out to determine the efficiency of fulvic acid (FA) application in removing Pb and Cd from polluted soil using Tagetes eracta L. and Zinnia elegans Jacq. ornamental plants. The results indicated that, FA application, number of flower per plants, and plant fresh weight of Tagetes eracta plants and Zinnia elegans plants increased 187.5%, 104.5% and 155.5%, 57.7%, respectively with application of 7000 mg L−1 FA at 100 mg kg−1 Pb pollution condition, whereas 42.85%, 16.5%, and 44.4–36.1% with application of 7000 mg L−1 FA at 30 mg kg±1 Cd pollution condition, respectively. With the FA application in the Zinnia elegans plant, the root part has accumulated 51.53% more Pb than the shoot part. For Cd, the shoot part accumulated 35.33% more Cd than the root. The effect of FA application on superoxide dismutase (SOD), peroxidase (POD) and, catalase (CAT) of the Tagetes eracta were decreased as 32.7%, 33.1%, and 35.1% for Pb, 21.2%, 25.1%, and 26,1%, for Cd, and 15.1%, 22.7%, and 37.7% for Pb, and 7.55%, 18.0%, and 18.8% for Cd were in Zinnia elegans respectively. In conclusion, Tagetes eracta and Zinnia elegans can not be recommended for remediation of Pb and Cd polluted area, but FA can be recommended for Pb and Cd stabilization in polluted soil.


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